[Corrado Carlevaro]

It had some background textures, I stripped everything down to Light, Sky, cubes (cylinders, actually, which material is only a pure white Color Channel with Oren-Nayar model), rendered, got stains, uploaded; then opened a brand new file, put inside the Lighting preset by Tim Clapham, cubes, got stains; then opened the Lighting preset, put inside cubes, got stains. As I said I’m the kind of guy who bangs his head against the wall trying to make things work but now I give up, thank you for your time.
I’m working with C4D Studio 14.034 Windows 7.

C.

[Corrado Carlevaro]

you were right: 30 frames, physical render, standard settings, no stains; grainy but not so slow, considering there’s no prepass time; so I assume it’s a IR bug

[Corrado Carlevaro]

Point 4. is the one that most suits me. On the other hand I could quit GI, or I could quit that project, or I could quit 3D all around and learn fishing 🙂

3.I tried Vray for C4D but it’s too complicated (those stupid cubes don’t need to be “realistic”).

2. Physical render is giving me the same stains (pure QMC seems to work better)

1. I’ll try that way

0. I’ll keep bothering helpful people like you asking for advice

Corrado

[Corrado Carlevaro]

Did you render the whole (something like 50, 100 frames) scene? Would you mind telling me your system configuration?
No progress at all, I rebuilt the whole scene from scratch many times but it’s always happening, actually I just open a Lighting preset by Tim Clapham, put the cubes inside and get stains.

Corrado

[Corrado Carlevaro]

I’ll try, frustrating, thank you anyway

Corrado

[Corrado Carlevaro]

Thank you Adam and Brian, so it’s happening on your machines too.
Me too I noticed it depends on the lenght, but I really don’t know what to do, it’s a very basic setup. I saw in a different forum a frame with the same kind of brownish stains but the guy was rendering an animation with Still Frame settings.
I rebuilt the whole setup from scratches but it’s happening again.

Corrado

[Corrado Carlevaro]

Of course, very kind of you.
One doubt: has animation, Xpresso or stuff like that, something to do when it comes to rendering or is, as I suppose, just a matter of geometry “as you see it”?

6086_worm.c4d.zip

Corrado

[Corrado Carlevaro]

Thank you for your reply,
but I’ve also unchecked Auto Load and Auto Save from Cache settings, if this is what you mean.
Tried almost every setting.
Frame attached

Corrado

[Corrado Carlevaro]

I don’t remember if you can have custom (jpeg or whatever) particles in Particle World (but I guess you can’t) but for sure you can have them in Trapcode Particular plugin. You can check https://www.motion-graphics-exchange.com/after-effects/Birds-Bats-and-Butterflies/496a7983d0fcf and download the project, there are Bats, Birds and Butterflies swarms (cartoony)

Corrado

[Corrado Carlevaro]

Thank you,(Field Order is set to Off), but if you can clarify more I have some questions.
I can get a better original, but this chroma subsampling stuff is not very clear to me: which kind of sampling should be used? 4:2:2 is not supposed to be “good”? Or those artifacts are a “side effect”?
Moreover, in AE in H.264 Video Settings window, under “Profile” I can choose between Baseline, Main and High and under “Level” from 1.0 to 5.1: what is supposed to be used?

Corrado Carlevaro